The ProForm iSeries 785F has a special ramp that allows you to adjust your stride incline. This added intensity can lead to much faster results. It also changes your stride to focus your effort on different muscles. The built in iPod-compatible music port lets you play any music you want. The 785f delivers a full 18" stride. 14 workouts designed by a personal trainer and 6 workouts designed specifically for weight loss give you all the means you need to reach your fitness goals.